<template>
    <Header></Header>
    <!-- 主内容区域 -->
    <main class="container max-w-screen-xl mx-auto p-4">
        <!-- grid 表格布局，分为 4 列 -->
        <div class="grid grid-cols-4 gap-4">
            <!-- 左边栏，占用 3 列 -->
            <div class="col-span-4 md:col-span-3 mb-3">
                <!-- 文章列表，grid 表格布局，分为 2 列 -->
                <div class="grid grid-cols-4 gap-7">
                    <div v-for="(article, index) in articles" :key="index" class="col-span-4 md:col-span-2">
                        <div
                            class="bg-white border h-full border-gray-200 rounded-lg dark:bg-gray-800 dark:border-gray-700">
                            <!-- 文章封面 -->
                            <a @click="goArticleDetailPage(article.id)">
                                <img class="rounded-t-lg h-48 w-full" :src="article.cover" />
                            </a>
                            <div class="p-5">
                                <!-- 标签 -->
                                <div class="mb-3">
                                    <span v-for="(tag, tagIndex) in article.tags" :key="tagIndex"
                                        @click="goTagArticleListPage(tag.id, tag.name)"
                                        class="cursor-pointer bg-green-100 text-green-800 text-xs font-medium mr-2 px-2.5 py-0.5 rounded hover:bg-green-200 hover:text-green-900 dark:bg-green-900 dark:text-green-300">
                                        {{ tag.name }}
                                    </span>
                                </div>
                                <!-- 文章标题 -->
                                <a @click="goArticleDetailPage(article.id)">
                                    <h2 class="mb-2 text-2xl font-bold tracking-tight text-gray-900 dark:text-white">
                                        {{ article.title }}</h2>
                                </a>
                                <!-- 文章摘要 -->
                                <p v-if="article.summary" class="mb-3 font-normal text-gray-500 dark:text-gray-400">{{
                                    article.summary }}</p>
                                <!-- 文章发布时间、所属分类 -->
                                <p class="flex items-center font-normal text-gray-400 text-sm dark:text-gray-400">
                                    <!-- 发布时间 -->
                                    <svg class="inline w-3 h-3 mr-2 text-gray-400 dark:text-white" aria-hidden="true"
                                        xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 20 20">
                                        <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"
                                            stroke-width="2"
                                            d="M5 1v3m5-3v3m5-3v3M1 7h18M5 11h10M2 3h16a1 1 0 0 1 1 1v14a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1Z" />
                                    </svg>
                                    {{ article.createDate }}

                                    <!-- 所属分类 -->
                                    <svg class="inline w-3 h-3 ml-5 mr-2 text-gray-400 dark:text-white"
                                        aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="none"
                                        viewBox="0 0 18 18">
                                        <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"
                                            stroke-width="2"
                                            d="M1 5v11a1 1 0 0 0 1 1h14a1 1 0 0 0 1-1V6a1 1 0 0 0-1-1H1Zm0 0V2a1 1 0 0 1 1-1h5.443a1 1 0 0 1 .8.4l2.7 3.6H1Z" />
                                    </svg>
                                    <a @click="goCategoryArticleListPage(article.category.id, article.category.name)"
                                        class="text-gray-400 hover:underline">{{ article.category.name }}</a>
                                    <!-- <a href="#" class="text-gray-400 hover:underline">abc</a> -->
                                </p>
                            </div>
                        </div>
                    </div>
                </div>
            </div>


            <!-- 右边侧边栏，占用一列 -->
            <aside class="col-span-4 md:col-span-1">
                <div class="sticky top-[5.5rem]">
                    <!-- 博主信息 -->
                    <UserInfo></UserInfo>

                    <!-- 分类 -->
                    <CategoryListCard></CategoryListCard>

                    <!-- 标签 -->
                    <TagListCard></TagListCard>
                </div>
            </aside>
        </div>

    </main>
    <!-- 分页 -->
    <nav aria-label="Page navigation example" class="mt-10 flex justify-center">
        <ul class="flex items-center -space-x-px h-10 text-base">
            <!-- 上一页 -->
            <li>
                <a @click="getArticles(current - 1)"
                    class="flex items-center justify-center px-4 h-10 ml-0 leading-tight text-gray-500 bg-white border border-gray-300 rounded-l-lg hover:bg-gray-100 hover:text-gray-700 dark:bg-gray-800 dark:border-gray-700 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white"
                    :class="[current > 1 ? '' : 'cursor-not-allowed']">

                    <span class="sr-only">上一页</span>
                    <svg class="w-3 h-3" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="none"
                        viewBox="0 0 6 10">
                        <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                            d="M5 1 1 5l4 4" />
                    </svg>
                </a>
            </li>
            <!-- 页码 -->
            <li v-for="(pageNo, index) in pages" :key="index">
                <a @click="getArticles(pageNo)"
                    class="flex items-center justify-center px-4 h-10 leading-tight bg-white border border-gray-300 dark:bg-gray-800 dark:border-gray-700 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white"
                    :class="[pageNo == current ? 'text-blue-600 bg-blue-50 hover:bg-blue-100 hover:text-blue-700' : 'text-gray-500  hover:bg-gray-100 hover:text-gray-700']">
                    {{ index + 1 }}
                </a>
            </li>
            <!-- 下一页 -->
            <li>
                <a @click="getArticles(current + 1)"
                    class="flex items-center justify-center px-4 h-10 leading-tight text-gray-500 bg-white border border-gray-300 rounded-r-lg hover:bg-gray-100 hover:text-gray-700 dark:bg-gray-800 dark:border-gray-700 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white"
                    :class="[current < pages ? '' : 'cursor-not-allowed']">
                    <span class="sr-only">下一页</span>
                    <svg class="w-3 h-3" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="none"
                        viewBox="0 0 6 10">
                        <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                            d="m1 9 4-4-4-4" />
                    </svg>
                </a>
            </li>


        </ul>
    </nav>
    <ScrollToTopButton></ScrollToTopButton>
    <Footer></Footer>
</template>

<script setup>
import Header from '@/layouts/weblog/components/Header.vue'
import Footer from '@/layouts/weblog/components/Footer.vue'
import UserInfo from '@/layouts/weblog/components/UserInfo.vue'
import CategoryListCard from '@/layouts/weblog/components/CategoryListCard.vue'
import TagListCard from '@/layouts/weblog/components/TagListCard.vue'
import ScrollToTopButton from '@/layouts/weblog/components/ScrollToTopButton.vue'
import { initTooltips } from 'flowbite'
import { ref, onMounted } from 'vue'
import { getArticlePageList } from '@/api/weblog/article'
import { useRouter } from 'vue-router'
const router = useRouter()
// 文章集合
const articles = ref([])
// 当前页码
const current = ref(1)
// 每页显示的文章数
const size = ref(8)
// 总文章数
const total = ref(0)
// 总共多少页
const pages = ref(0)
// 获取指定页的文章数据
function getArticles(currentNo) {
    // 上下页是否能点击判断，当要跳转上一页且页码小于 1 时，则不允许跳转；当要跳转下一页且页码大于总页数时，则不允许跳转
    if (currentNo < 1 || (pages.value > 0 && currentNo > pages.value)) return
    // 调用分页接口渲染数据
    getArticlePageList({ current: currentNo, size: size.value }).then((res) => {
        if (res.success) {
            articles.value = res.data
            current.value = res.current
            size.value = res.size
            total.value = res.total
            pages.value = res.pages
        }
    })
}
getArticles(current.value)
onMounted(() => {
    initTooltips();
})
const goCategoryArticleListPage = (id, name) => {
    // 跳转时通过 query 携带参数（分类 ID、分类名称）
    router.push({ path: '/category/article/list', query: { id, name } })
}
// 跳转标签文章列表页
const goTagArticleListPage = (id, name) => {
    // 跳转时通过 query 携带参数（标签 ID、标签名称）
    router.push({ path: '/tag/article/list', query: { id, name } })
}
// 跳转文章详情页
const goArticleDetailPage = (articleId) => {
    router.push('/article/' + articleId)
}
</script>
<style>
a {
    cursor: pointer;
    /* 或者其他如 not-allowed, pointer 等 */
}
</style>